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Finding the Fourth Proportional to 616,617.21, 850,913.85 and 344,685.63

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Solution

The fourth proportional to 616,617.21, 850,913.85 and 344,685.63 is: 475,656.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,617.21 : 850,913.85 = 344,685.63 : x
  2. Step 2: Convert to fraction form
    616,617.21/850,913.85 = 344,685.63/x
  3. Step 3: Cross multiply
    616,617.21x = 850,913.85 × 344,685.63
  4. Step 4: Simplify right side
    616,617.21x = 293,297,776,462.98
  5. Step 5: Solve for x
    x = 293,297,776,462.98/616,617.21
  6. Step 6: Final answer
    x = 475,656.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.